Lot of rumors floated when Vega first came out in regards to part/labor cost being higher than the MSRP. And some, as to memory might had justification, or defects getting the GPU/HBM2 imposer in full production. Although the other day Egg had a Sapphire Vega 64 (blower) *No Rebate* just a $5 off code (whoop) and it was $395, that's 20% off MSRP. While even in early November '18, a PowerColor RED DRAGON Vega 56 was $330 working only a code (-18%). I'm sure everyone (AMD, channel, retail) is making it wroth their while in moving them along... there not doing it out the goodness of their heart.
So this tells me that this Vega 7 is fine and AMD has the MSRP set that each of these geldings probably make more then the price out of TSCM. Do we think "Instinct" volume is more mainstream than "Frontier" SKU's into professional, I think that is probably the case. Could we say 25% of total "Instinct" are Binned? Seeing the price above AMD seems to show strong confidence in interposer production, while HBM2 prices are probably dropped and inventory blanket orders are assured. I'd bet that (like the RX 590) AIB will just repurpose exist Vega coolers/fan mainly just update shrouds and appearance.
So, if $699 is MSRP just 10% reduction is $630. If all such assumptions fall as (8 out 10 correct) AMD could fill and maintain the channel better the original Vega which by all appearances was and is lax.